I didn't go wild with the fancy shampoos, but I did invest in the EQ Body Wash and Foaming Tool. This stuff works. You hose the horse off with just the sprayer. Attach the Foaming Tool to the sprayer, and spray with the foamy soap. Scrub with a sponge or other tool, if needed. Repeat the foamy soap, if needed. Remove the tool from the sprayer, and rinse clean. It's that easy! It leaves the horses feeling silky soft, but not slick, for several days. Their coats feel clean and smell nice, but not perfumy.
For show prep, either the day before, or the morning of, the foaming tool makes clean up a simple, easy, and quick task. I sound like a commercial, I know, but the stuff really is that great!
I buy mine at Valley Vet, although I know there are similar brands available at other stores. I've stuck with this particular brand because it works so well. The Foaming Tool runs about $35, and the 100 oz. body wash runs about $25. You can buy the Body Wash in a 32 oz. jug that comes with a built in foamer, but I was worried that it might break. I've used my foaming tool for two summers and it has held up very well.
Here's to quick baths and pretty ponies!